Answer:
Letter D, Herpes simplex
Explanation:
Herpes simplex is caused by the herpes virus (HSV). The herpes virus can infect different parts of the body depending on the type of virus.
HSV-1: cusses blisters around the mouth, including eyes in the case of several infections.
HSV-2: responsible for genital infections.
The signs and symptoms include blistering in the infecting area, itching and flu-like symptoms (fever, headache, etc.)
Answer:
The correct answer would be d. thymus.
The thymus is a specialized lymphoid organ of an immune system.
It serves as the site for training and maturation of T-lymphocytes or T cells.
It is composed two identical lobes each containing outer region termed as cortex and inner region termed as medulla.
T-cells are first trained and selected in the cortex region via positive selection. In this, T cells which are able to bind to foreign antigens are selected and rest are degraded.
The selected T cells then move in the medulla region where they are selected by negative selection. In this, the T cells which binds to self-antigens are degraded and rest survive to become functional T cells.
The recommended dietary allows differs with age, sex, and health status. Leen is an healthy female adult so the RDA should be 15 mg so if she has consumed 6 mg the percentage is 6/15*100 = 40%
